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annotate liboctave/data-conv.h @ 15283:a95432e7309c stable release-3-6-3

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Version 3.6.3 released. * configure.ac (AC_INIT): Version is now 3.6.3. (OCTAVE_RELEASE_DATE): Now 2012-09-04.
author John W. Eaton <jwe@octave.org>
date Tue, 04 Sep 2012 13:17:13 -0400
parents 72c96de7a403
children 9020dddc925a
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1 /*
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2
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72c96de7a403 maint: update copyright notices for 2012
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3 Copyright (C) 1996-2012 John W. Eaton
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4
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5 This file is part of Octave.
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6
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7 Octave is free software; you can redistribute it and/or modify it
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8 under the terms of the GNU General Public License as published by the
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9 Free Software Foundation; either version 3 of the License, or (at your
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10 option) any later version.
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11
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12 Octave is distributed in the hope that it will be useful, but WITHOUT
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13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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15 for more details.
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16
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17 You should have received a copy of the GNU General Public License
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18 along with Octave; see the file COPYING. If not, see
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19 <http://www.gnu.org/licenses/>.
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21 */
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22
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23 #if !defined (octave_data_conv_h)
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24 #define octave_data_conv_h 1
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25
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26 #include <climits>
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27
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28 #include "mach-info.h"
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30 class
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31 OCTAVE_API
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32 oct_data_conv
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33 {
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34 public:
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35
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36 enum data_type
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37 {
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38 dt_int8 = 0,
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39 dt_uint8 = 1,
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40 dt_int16 = 2,
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41 dt_uint16 = 3,
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42 dt_int32 = 4,
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43 dt_uint32 = 5,
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44 dt_int64 = 6,
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45 dt_uint64 = 7,
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46 dt_single = 8,
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47 dt_double = 9,
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48 dt_char = 10,
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49 dt_schar = 11,
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50 dt_uchar = 12,
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51 dt_logical = 13,
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52 dt_short = 14,
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53 dt_ushort = 15,
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54 dt_int = 16,
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55 dt_uint = 17,
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56 dt_long = 18,
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57 dt_ulong = 19,
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58 dt_longlong = 20,
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59 dt_ulonglong = 21,
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60 dt_float = 22,
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61 dt_unknown = 23 // Must be last, have largest value!
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62 };
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64 static data_type string_to_data_type (const std::string& s);
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66 static void string_to_data_type (const std::string& s, int& block_size,
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67 data_type& input_type,
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68 data_type& output_type);
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70 static void string_to_data_type (const std::string& s, int& block_size,
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71 data_type& output_type);
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72
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73 static std::string data_type_as_string (data_type dt);
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74 };
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75
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76 // Add new entries to the end of this enum, otherwise Octave will not
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77 // be able to read binary data files stored in Octave's binary data
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78 // format that were created with previous versions of Octave.
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79
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80 enum save_type
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81 {
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82 LS_U_CHAR = 0,
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83 LS_U_SHORT = 1,
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84 LS_U_INT = 2,
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85 LS_CHAR = 3,
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86 LS_SHORT = 4,
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87 LS_INT = 5,
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88 LS_FLOAT = 6,
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89 LS_DOUBLE = 7,
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90 LS_U_LONG = 8,
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91 LS_LONG = 9
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92 };
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93
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94 extern OCTAVE_API void
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95 do_double_format_conversion (void *data, octave_idx_type len,
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96 oct_mach_info::float_format from_fmt,
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97 oct_mach_info::float_format to_fmt
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98 = oct_mach_info::native_float_format ());
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99
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100 extern OCTAVE_API void
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101 do_float_format_conversion (void *data, octave_idx_type len,
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102 oct_mach_info::float_format from_fmt,
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103 oct_mach_info::float_format to_fmt
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104 = oct_mach_info::native_float_format ());
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105
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106 extern OCTAVE_API void
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107 do_float_format_conversion (void *data, size_t sz, octave_idx_type len,
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108 oct_mach_info::float_format from_fmt,
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109 oct_mach_info::float_format to_fmt
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110 = oct_mach_info::native_float_format ());
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111
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112 extern OCTAVE_API void
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113 read_doubles (std::istream& is, double *data, save_type type,
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114 octave_idx_type len, bool swap, oct_mach_info::float_format fmt);
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115
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116 extern OCTAVE_API void
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117 write_doubles (std::ostream& os, const double *data, save_type type,
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118 octave_idx_type len);
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119
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120 extern OCTAVE_API void
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121 read_floats (std::istream& is, float *data, save_type type,
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122 octave_idx_type len, bool swap, oct_mach_info::float_format fmt);
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123
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124 extern OCTAVE_API void
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125 write_floats (std::ostream& os, const float *data, save_type type,
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126 octave_idx_type len);
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127
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128 #endif